Loans are available for projects such as new wastewater treatment plants, upgrades or expansions; Combined Sewer Overflow (CSO) projects; pump stations (new or upgrades); new collector sewers or interceptors; surface water management projects under a permit for a Municipal Separate Storm Sewer System (MS4); and sewer rehabilitation projects. Green infrastructure, water efficiency, energy efficiency, or environmentally innovative projects are also eligible.

Loans are made at below-market interest rates. Loan subsidies, including principal loan forgiveness, lower rates of interest, and loan repayment terms up to 30 years, may be provided based on estimated residential project affordability.